ABSTRACT
Bridge damage and landslide resulting from rainfall significantly disrupt transportation systems. To enhance the performance and resilience of road networks due to torrential rainfall events, it is essential to assess the connectivity of road network while considering the failure of bridges and slopes. This study presents a methodology for probabilistic connectivity assessment of road network incorporating the potential failure of bridges and slopes under rainfall hazard. The proposed method selects surface runoff as a critical parameter to establish a spatial correlation model for the hazard intensities exerted on bridges and slopes. As an illustrative example, the proposed method is applied to a hypothetical road network in Yamagata Prefecture, Japan, susceptible to rainfall-induced floods and landslides.
